INTRODUCTION Thank you for purchasing this model of the standby gen- erator set product line by Generac Power Systems. Every effort was expended to make sure that the infor- mation and instructions in this manual were both accu- rate and current at the time the manual was written.

Power Systems, Inc. • For that this equipment be installed, serviced and repaired by a Generac Authorized Service Dealer or other competent, qualified electrician or installation technician who is familiar with applicable codes, standards and regulations. The operator also must comply with all such codes, standards and regula- tions.

Keep the area surrounding the generator clean and free from debris. • Generac generator sets may operate using one of sev- eral types of fuels. All fuel types are potentially FLAM- MABLE and/or EXPLOSIVE and should be handled with care.

If, however, load voltage requires 120/208 volts, 3-phase output, generator will require reconnecting of the sta- tor’s output leads. This task should only be performed by a qualified Generac service technician. Refer to the installation manual (Part No. 079699) for details.

The unit will not start or crank if the fuse is blown. Replace the fuse with one of the same size, type, and rat- ing. Generac normally uses an AGC fuse rated at 30 amps. UNPACKING UNPACKING PRECAUTIONS: Handle shipping cartons and crates with care.

Connecting this generator to an electrical system normally supplied by an electric utility shall be by means of a transfer switch (such as the Generac “GTS” type transfer switch), so as to isolate the electric system from the utility distribution system when the generator is operating. Failure to isolate the electric system by these means will result in damage to the generator and may also result in injury or death to utility workers due to backfeed of electrical energy.

TRANSFER SWITCH START SIGNAL CONNECTIONS If your generator is to be installed with an automatic transfer switch, such as a Generac GTS-type switch, it will be necessary to connect the two-wire start control system. Connect the two-wire start signal from the automatic transfer switch to the automatic start connection, which is located in the right hand corner inside the control panel.

(For additional information, see the applicable transfer switch manual for this unit.) The transfer switch, as well as the generator and other standby components, must be properly located and mounted in strict compli- ance with applicable codes, standards and regulations. ® Generac Power Systems, Inc. 11...

USING A STANDARD “GTS” TRANSFER SWITCH When required, the pre-packaged standby generator can be installed with a standard Generac “GTS” type automatic transfer switch. When you use a standard GTS type transfer switch, it controls automatic operation and automatic transfer as follows: •...

Coolant should be at bottom of radiator filler neck. If coolant level is low, inspect gasket in radiator pressure cap. Replace cap, if necessary. To have pressure cap tested, contact an authorized Generac Service Facility. Inspect cooling system and coolant recovery system for leaks. ® Generac Power Systems, Inc.

Guardian Liquid-cooled 10 kW, 15 kW, 20 kW and 25 kW Generators Following is a recommended maintenance schedule for Generac small standby and residential generator sets from 8 kW to 35 kW in size, and applies to both diesel engine and gas engine driven units. The established intervals in the schedule are the maximum recommended when the unit is used in an average service application.

Owner’s Manual. For warranty purposes, Generac recommends that you retain all receipts covering maintenance on your engine. However, Generac cannot deny warranty solely due to the lack of receipts or for your failure to ensure the completion of all scheduled maintenance.

Such use voids this ECS Warranty and shall be sufficient grounds for disallowing an ECS Warranty claim. Generac shall not be held liable hereunder for failures of any warranted parts of a Generac engine caused by the use of such an unapproved, add-on, modified, counterfeit and/or “grey market”...

GENERAC’S STANDARD ONE-YEAR LIMITED WARRANTY FOR STANDBY POWER SYSTEMS For a period of one year or 1,500 hours of operation from the date of original sale, whichever occurs first, Generac Power Systems, Inc. (Generac) will, at its option, repair or replace any part which, upon examination by Generac or a Generac/Guardian Authorized Warranty Service Facility, is found to be defective under normal use and service, in accordance with the warranty schedule set forth below.